ALEXANDRIA, Va., May 26 -- United States Patent no. 12,639,013, issued on May 26, was assigned to Micron Technology Inc. (Boise, Idaho).

"Apparatuses and methods for staggered refresh operations across memory devices of a module" was invented by Sujeet Ayyapureddi (Boise, Idaho) and Wesley W. Borie (Boise, Idaho).

According to the abstract* released by the U.S. Patent & Trademark Office: "A memory module includes a number of memory devices which receive refresh commands. Each memory device determines if it is that device's turn in a sequence, for example by counting the refresh commands. When it is not a device's turn, it performs refresh operations at a first rate responsive to the refresh commands. When it is the device's turn, it perfo...